Enq/Ack/Nak - SATO M-8400RVe Operator And Technical Reference Manual

Section 6: Interface Specifications
command an ACK (06 hexadecimal) is returned if there are no errors and a NAK (16
hexadecimal) if a printer error exists.
(1) To provide compatibility with older SATO printers, the RS232C interface can be
configured to use an earlier Bi-Com 3 ENQ/ACK/NAK protocol selected via DSW2-8
and DSW1-7/8 (on the RS232 Interface module).The earlier protocol did not have
provisions for the Job Name and did not respond to the DLE or DCI commands.
Also, there are additional Response Codes in the Status Byte Definition. It is
recommended that you use the current protocol rather than the earlier version unless
it is necessary for compatibility with existing software.
Page 6-10 PN 9001075A SATO M8400RVe